Here is Example of how you can use the includeIn property in the Flex 4 to hide and show anything. All you need is just put the includeIn property and the state name. Click Here for Source . You need Flash Player 10 to view this, If it works in Flash Player 9 let me know so I dont have to include the “Need Flash Player 10″. I’ll include pics so if it doesnt work in 9 and you just want to see it.

Example:

Pics: